使用Regex從連接字符串中提取屬性

Question

在C#我試圖從連接字符串獲取Data Source和initial catalog屬性。

所以如果我有

metadata=res://*/model.csdl|res://*/model.ssdl|res://*/model.msl;provider=System.Data.SqlClient;provider connection string="data source=myDESKTOP;initial catalog=dbName;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"

無論表達式左側的大小寫如何，如何僅提取值myDESKTOP和dbName ？

Answer 1

您可以剖析Entity Framework的連接字符串並提取內部基本連接字符串。 那時，SqlConnectionStringBuilder可以為您提供組成連接字符串的各個部分

string test = "metadata=res://*/model.csdl|res://*/model.ssdl|res://*/model.msl;provider=System.Data.SqlClient;provider connection string=\"data source = myDESKTOP; initial catalog = dbName; integrated security = True; MultipleActiveResultSets = True; App = EntityFramework";

string con = string.Join("=", 
                    string.Join(";", test.Split(';').Skip(2))
                          .Split('=').Skip(1)).Trim('"');

SqlConnectionStringBuilder sb = new SqlConnectionStringBuilder(con);
Console.WriteLine(sb.DataSource);
Console.WriteLine(sb.InitialCatalog);